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3D movies are really exciting to watch. More and more 3D movies are coming to theaters. Some say that 3D TV sets will come into our homes in the near future. 3D technology can make TV and movies more exciting. However, people with eye problems may get headaches if they spend too much time watching 3D movies. Why?
When we look at an object, each eye sees it at a different angle (角度). Our eyes send the two images to our brain, and the brain puts them together. 3D technology uses two film projectors (投影机)。 One projects left-eye-image and the other projects a right-eye-image. 3D glasses allow us to see a different image in each eye. So, when we are watching a 3D movie, our brain can’t put together the images sent to our eyes. The brain needs to work harder at “reading” the images. That makes it easier for people with eye problems to get dizzy (头晕的) or have headaches.
Dr John Hagan, an eye doctor in Kansas City, said if your eyes can’t focus on the same object at once, you will have trouble watching 3D movies.
小题1:What is Avatar?
| A.It’s a kind of 3D projector. | B.It’s a kind of 3D TV set. |
| C.It’s a movie. | D.It’s an animal. |
| A.look more beautiful than usual |
| B.look as if they are coming straight at you |
| C.look as if they are far away from you |
| D.look more strange than usual |
| A.3D computers |
| B.3D projectors |
| C.3D phones |
| D.3D TV sets |
| A.each eye sees the object at the same angle |
| B.each eye sees a different object at the same time |
| C.our brain puts the two different pictures together |
| D.there will be two film projectors in our eyes |
| A.you will see different images in both eyes |
| B.you will see the same images in both eyes |
| C.your brain can’t work at all |
| D.the images can be put together easily by your brain |
More and more 3D movies are coming to theaters. 3D TV sets have been produced in Japan now. Three-dimensional technology can make TV and movies more exciting. But people with eye problems may get headaches if they spend too much time watching 3D movies.
When we look at an object(物体), each eye sees it at a different angle(角度). Our eyes send the two images to our brain(大脑), and the brain puts them together. That’s how we see depth(深度). So when we watch a 3D movie, one film projector(投影机) projects a left eye image and the other projects a right eye image. 3D glasses allow us to see a different image in each eye.
There are a lot of people walking around with very less serious eye problems. Under normal situations, the brain can adjust to their eyes so they can see things normally.
But when they are watching a 3D movie, the images projected to their eyes can’t be put together by their brain. So the brain needs to work harder at reading the images. That makes it easier for these people to get headaches.
Dr John Hagan, an eye doctor in Kansas City, said some people who do not see depth normally cannot see in 3D at all.
小题1:When people want to watch a three-dimensional movie, they need .
A. a ticket B. a pair of 3D glasses C. an earphone
小题2:Three-dimensional technology uses film projector(s) to project one movie at the same time.
A. one B. two C. three
小题3:According to the passage, if we look at an object by only one eye, we can’t judge the excatly.
A. image B. angle C. depth
小题4:Which statement is TRUE according to the passage?
A. In the near future, people can enjoy 3D movie by watching TV at home.
B. Whenever you wear a 3D glasses, you can see objects more clearly.
C. People who have something wrong with their brain can’t read the images of 3D movie.
小题5:The main idea of this passage is .
A. how to use 3D glasses to watch a 3D movie.
B. 3D glasses make the movie seem alive
C. not everybody can enjoy 3D movies.
Have you had this experience? You are watching a movie. A man is shooting on the screen. The picture is so real that you think he is shooting at you. Or a car is speeding on the screen and at one point you are afraid that it will hit you. Yes,it’s a three-dimensional(3D) movie.
3D movies use special technology to make pictures seem more real and exciting than two-dimensional ones.They are fun to watch, but do you know how they are made? It is much easier to understand if we do an experiment.
Hold one of your fingers up at arms length and close one eye. Then try closing the other eye. As you switch(切换) between open eyes, you should see your finger “jumping” left and right against the background.
This happens because our two eyes are about 4cm away from each other. The separation(分开) causes each eye to see the world from a different angle. The brain puts these two views together. What you see becomes three-dimensional.
3D movies are made using two video cameras at the same time, which creates two different images. When the movie plays in a cinema, two projectors(放映机) put the two images on the screen. With a pair of 3D glasses, the two images are separated and each image only enters one eye. Your brain puts the two pictures back together, and the pictures on the screen become three-dimensional.
So far we can only see 3D movies in the cinema with a special screen and projector. But soon, we will be able to watch them in our living rooms.
51. According to the passage,3D movies _________.
A. are less real than the common movies
B. use special projectors to make pictures
C. will take the place of 2D movies soon
D. can be only seen in the cinema now
52. We need _________ when seeing a 3D movie.
A. Fingers. B. 3D glasses. C. Cameras. D. Pictures.
53. From the passage, we know that 3D technology ________.
A. works in similar way of eyes seeing things
B. creates two different images separately
C. uses special video cameras and screens
D. can be very easy to experiment with
54. In which page of a newspaper can you most probably read this passage?
A. Fiction B. Advertisement C. News D. Science
55. The passage is mainly about ________.
A. how 3D movies develops B. what 3D movies are
C. how 3D technology works D. what 3D technology needs
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